Check for existence of GitRepository.Spec.Reference when displaying a trace to
avoid error:
✗ template: tmpl:28:21: executing "tmpl" at <.GitRepository.Spec.Reference.Tag>: nil pointer evaluating *v1beta1.GitRepositoryRef.Tag
Fixes issue #1621
Manually tested using the use cases highlighted in the issue.
Signed-off-by: Allen Porter <allen@thebends.org>
The trace command allows Flux users to point the CLI to a Kubernetes object in-cluster and get a detailed report about the GitOps pipeline that manages that particular object.
Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>
